| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.80/5 | 4.60/5 |
| Vol 2 | 2.64/5 | 4.62/5 |
| Vol 3 | 2.16/5 | 3.68/5 |
| Vol 4 | 2.28/5 | 4.38/5 |
| Vol 5 | 2.33/5 | 3.49/5 |
| Vol 6 | 2.26/5 | 3.92/5 |
| Vol 7 | 2.23/5 | 4.35/5 |
| Vol 8 | 2.18/5 | 3.89/5 |
| Vol 9 | 2.18/5 | 3.35/5 |
| Vol 10 | 2.41/5 | 4.38/5 |
| Vol 11 | 2.58/5 | 3.55/5 |
| Vol 12 | 2.09/5 | 3.48/5 |
| Vol 13 | 2.45/5 | 4.71/5 |
| Vol 14 | 2.20/5 | 4.25/5 |
| Vol 15 | 2.25/5 | 3.97/5 |
| Vol 16 | 2.19/5 | 4.02/5 |
| Vol 17 | 2.30/5 | 3.78/5 |
| Vol 18 | 2.28/5 | 4.18/5 |
| Vol 19 | 2.55/5 | 3.28/5 |
| Overall | 2.34/5 | 4.71/5 |